SF: Adding Idle Timer, to detect when devices are idle.
If SF has not received request for the next vsync in 30ms, the device is
considered idle.
The timeout ms can be set via setprop flag: debug.sf.set_idle_timer_ms
see go/surface-flinger-scheduler for more info.
Test: Adding tests for new class.
Bug: 113612090
Change-Id: I5dae075012f3fef9bb8ed48121367c80dff39de0
diff --git a/services/surfaceflinger/Scheduler/EventThread.cpp b/services/surfaceflinger/Scheduler/EventThread.cpp
index 49e7ef6..1f08f4e 100644
--- a/services/surfaceflinger/Scheduler/EventThread.cpp
+++ b/services/surfaceflinger/Scheduler/EventThread.cpp
@@ -48,10 +48,14 @@
namespace impl {
EventThread::EventThread(std::unique_ptr<VSyncSource> src,
- ResyncWithRateLimitCallback resyncWithRateLimitCallback,
- InterceptVSyncsCallback interceptVSyncsCallback, const char* threadName)
+ const ResyncWithRateLimitCallback& resyncWithRateLimitCallback,
+ const InterceptVSyncsCallback& interceptVSyncsCallback,
+ const ResetIdleTimerCallback& resetIdleTimerCallback,
+ const char* threadName)
: EventThread(nullptr, std::move(src), resyncWithRateLimitCallback, interceptVSyncsCallback,
- threadName) {}
+ threadName) {
+ mResetIdleTimer = resetIdleTimerCallback;
+}
EventThread::EventThread(VSyncSource* src, ResyncWithRateLimitCallback resyncWithRateLimitCallback,
InterceptVSyncsCallback interceptVSyncsCallback, const char* threadName)
@@ -150,6 +154,9 @@
void EventThread::requestNextVsync(const sp<EventThread::Connection>& connection) {
std::lock_guard<std::mutex> lock(mMutex);
+ if (mResetIdleTimer) {
+ mResetIdleTimer();
+ }
if (mResyncWithRateLimitCallback) {
mResyncWithRateLimitCallback();